The Conformal Cyclic Cosmology model (CCC) introduced by R. Penrose [1]}, [2]}, and inspired by work of P. Tod [3]}, [4]}, led to the qualitative prediction of concentric low-variance circular rings in the cosmic microwave background (CMB) resulting from super-massive black-hole mergers in the previous aeon - former version of our current Universe [5]}. Furthermore, Hawking evaporation of black holes, the expected final fate of isolated super-massive black holes in the previous aeon, are predicted to give rise to bright spots in the CMB, referred to as Hawking points. Qualitative arguments predict that Hawing points are surrounded by concentric low-variance circular rings that are somewhat higher in temperature than the average CMB temperature, and that concentric low-variance rings without a central Hawking point should be somewhat lower in temperature [5]}.
